Sources
I have culled this information from the following sources:
- alltime-athletics.com/
- arrs.run
- trackfield.brinkster.net
- thegreatdistancerunners.de/usa.html
- bringbackthemile.com/history
- gbrathletics.com/tp/wormi.htm
- Progression of the European Indoor Record by Jose Maria Garcia
- A History of Indoor Track and Field 1849-2013 by R. Grant Birkinshaw
- Newspaper article searches on newspapers.com and in public library databases
- Millrose Games programs
- Programs from other track and field meets